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* Turned the msg() and debug() functions into macros, since they

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turned out to be a huge performance bottleneck (the text to printed
  would always be evaluated, even when it was above the verbosity
  level).  This reduces fix-ng execution time by over 50%.

  gprof(1) is very useful. :-)
This commit is contained in:
Eelco Dolstra 2003-11-09 10:35:45 +00:00
parent d2e3a132fe
commit 15801c88fa
10 changed files with 60 additions and 45 deletions
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21
src/libnix/util.hh
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@ -101,12 +101,27 @@ class Nest
private:
bool nest;
public:
Nest(Verbosity level, const format & f);
Nest();
~Nest();
void open(Verbosity level, const format & f);
};
void msg(Verbosity level, const format & f);
void debug(const format & f); /* short-hand for msg(lvlDebug, ...) */
void printMsg_(Verbosity level, const format & f);
#define startNest(varName, level, f) \
Nest varName; \
if (level <= verbosity) { \
varName.open(level, (f)); \
}
#define printMsg(level, f) \
do { \
if (level <= verbosity) { \
printMsg_(level, (f)); \
} \
} while (0)
#define debug(f) printMsg(lvlDebug, f)
/* Wrappers arount read()/write() that read/write exactly the